github.com/ecodeclub/eorm@v0.0.2-0.20231001112437-dae71da914d0/session.go (about)

     1  // Copyright 2021 ecodeclub
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  // http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package eorm
    16  
    17  import (
    18  	"context"
    19  	"database/sql"
    20  
    21  	"github.com/ecodeclub/ekit/list"
    22  	"github.com/ecodeclub/eorm/internal/datasource"
    23  	"github.com/ecodeclub/eorm/internal/rows"
    24  	"golang.org/x/sync/errgroup"
    25  )
    26  
    27  var _ Session = (*baseSession)(nil)
    28  
    29  type baseSession struct {
    30  	core
    31  	executor datasource.Executor
    32  }
    33  
    34  func (sess *baseSession) queryContext(ctx context.Context, q Query) (rows.Rows, error) {
    35  	return sess.executor.Query(ctx, q)
    36  }
    37  
    38  func (sess *baseSession) queryMulti(ctx context.Context, qs []Query) (list.List[rows.Rows], error) {
    39  	res := &list.ConcurrentList[rows.Rows]{
    40  		List: list.NewArrayList[rows.Rows](len(qs)),
    41  	}
    42  	var eg errgroup.Group
    43  	for _, query := range qs {
    44  		q := query
    45  		eg.Go(func() error {
    46  			rs, err := sess.queryContext(ctx, q)
    47  			if err == nil {
    48  				return res.Append(rs)
    49  			}
    50  			return err
    51  		})
    52  	}
    53  	return res, eg.Wait()
    54  }
    55  
    56  func (sess *baseSession) execContext(ctx context.Context, q Query) (sql.Result, error) {
    57  	return sess.executor.Exec(ctx, q)
    58  }
    59  
    60  func (sess *baseSession) getCore() core {
    61  	return sess.core
    62  }